I’ve been finding it super helpful to hit the cram feature and set it to audio questions. Then, choose three grammar points from a level you completely and easily understand, hit “complete mode”, and run the cram. Play the audio for each sentence as many times as you need to catch the whole thing, but if there’s anything you don’t understand, mark it failed.
Then, you work your way up through grammar points three at a time. Read each grammar point’s explanation before you cram it. If there’s a grammar point where you can’t catch a lot of the sentences, run it again the next day, and the next, as many times as it takes.
Cannot describe how helpful this has been to me for my listening skills.